Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
trinh quan » tinh quang, trinh luat, trinh han
hoc thieu » toc thieu, hoc hien
trinh qua » trinh cua, trinh quang, trinh luat
dung cong » dung trong
cong san » cong tac
san nhan » van nhan, ban nhan, sat nhan
nhan tu » nhanh tu, phan tu, nhan su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tinh - canh ((trinh qua) OR (trinh quan)) dung cong san nhan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - canh ((trinh qua) OR (trinh quan)) dung cong san nhan tu*".